[SCSI] be2iscsi: Fixing the return type of functions

Fixing some functions return values that did not match with
the possible return values

Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --cc drivers/scsi/be2iscsi/be_cmds.h
Simple merge

diff --cc drivers/scsi/be2iscsi/be_main.c
Simple merge

diff --cc drivers/scsi/be2iscsi/be_mgmt.c
Simple merge

diff --cc drivers/scsi/be2iscsi/be_mgmt.h
Simple merge